Islamic Interpretation of Dreams (Ibn-i Sirin):
(Dung; Excrement) Manure represents money for one who eats it, or for one who collects it in his house or in a barn in his dream.
Any animal excrements that are used to fertilize the soil, or if they are used as fuel represent profits when seen in a dream and particularly dried dung. Pigeonsâ droppings, or the refuse of any type of fowl in a dream represent unlawful money. Cow dung in a dream is a sign of prosperity and a good harvest for farmers only.
(Also see Droppings; Dung)